1 /* $OpenBSD: if_trunk.h,v 1.11 2007/01/31 06:20:19 reyk Exp $ */ 2 3 /* 4 * Copyright (c) 2005, 2006 Reyk Floeter <reyk@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 * 18 * $FreeBSD$ 19 */ 20 21 #ifndef _NET_LAGG_H 22 #define _NET_LAGG_H 23 24 /* 25 * Global definitions 26 */ 27 28 #define LAGG_MAX_PORTS 32 /* logically */ 29 #define LAGG_MAX_NAMESIZE 32 /* name of a protocol */ 30 #define LAGG_MAX_STACKING 4 /* maximum number of stacked laggs */ 31 32 /* Lagg flags */ 33 #define LAGG_F_HASHL2 0x00000001 /* hash layer 2 */ 34 #define LAGG_F_HASHL3 0x00000002 /* hash layer 3 */ 35 #define LAGG_F_HASHL4 0x00000004 /* hash layer 4 */ 36 #define LAGG_F_HASHMASK 0x00000007 37 38 /* Port flags */ 39 #define LAGG_PORT_SLAVE 0x00000000 /* normal enslaved port */ 40 #define LAGG_PORT_MASTER 0x00000001 /* primary port */ 41 #define LAGG_PORT_STACK 0x00000002 /* stacked lagg port */ 42 #define LAGG_PORT_ACTIVE 0x00000004 /* port is active */ 43 #define LAGG_PORT_COLLECTING 0x00000008 /* port is receiving frames */ 44 #define LAGG_PORT_DISTRIBUTING 0x00000010 /* port is sending frames */ 45 #define LAGG_PORT_BITS "\20\01MASTER\02STACK\03ACTIVE\04COLLECTING" \ 46 "\05DISTRIBUTING" 47 48 /* Supported lagg PROTOs */ 49 typedef enum { 50 LAGG_PROTO_NONE = 0, /* no lagg protocol defined */ 51 LAGG_PROTO_ROUNDROBIN, /* simple round robin */ 52 LAGG_PROTO_FAILOVER, /* active failover */ 53 LAGG_PROTO_LOADBALANCE, /* loadbalance */ 54 LAGG_PROTO_LACP, /* 802.3ad lacp */ 55 LAGG_PROTO_BROADCAST, /* broadcast */ 56 LAGG_PROTO_MAX, 57 } lagg_proto; 58 59 struct lagg_protos { 60 const char *lpr_name; 61 lagg_proto lpr_proto; 62 }; 63 64 #define LAGG_PROTO_DEFAULT LAGG_PROTO_FAILOVER 65 #define LAGG_PROTOS { \ 66 { "failover", LAGG_PROTO_FAILOVER }, \ 67 { "lacp", LAGG_PROTO_LACP }, \ 68 { "loadbalance", LAGG_PROTO_LOADBALANCE }, \ 69 { "roundrobin", LAGG_PROTO_ROUNDROBIN }, \ 70 { "broadcast", LAGG_PROTO_BROADCAST }, \ 71 { "none", LAGG_PROTO_NONE }, \ 72 { "default", LAGG_PROTO_DEFAULT } \ 73 } 74 75 /* Supported lagg TYPEs */ 76 typedef enum { 77 LAGG_TYPE_ETHERNET = 0, /* ethernet (default) */ 78 LAGG_TYPE_INFINIBAND, /* infiniband */ 79 LAGG_TYPE_MAX, 80 } lagg_type; 81 82 struct lagg_types { 83 const char *lt_name; 84 lagg_type lt_value; 85 }; 86 87 #define LAGG_TYPE_DEFAULT LAGG_TYPE_ETHERNET 88 #define LAGG_TYPES { \ 89 { "ethernet", LAGG_TYPE_ETHERNET }, \ 90 { "infiniband", LAGG_TYPE_INFINIBAND }, \ 91 } 92 93 /* 94 * lagg create clone params 95 */ 96 struct iflaggparam { 97 uint8_t lagg_type; /* see LAGG_TYPE_XXX */ 98 uint8_t reserved_8[3]; 99 uint32_t reserved_32[3]; 100 }; 101 102 /* 103 * lagg ioctls. 104 */ 105 106 /* 107 * LACP current operational parameters structure. 108 */ 109 struct lacp_opreq { 110 uint16_t actor_prio; 111 uint8_t actor_mac[ETHER_ADDR_LEN]; 112 uint16_t actor_key; 113 uint16_t actor_portprio; 114 uint16_t actor_portno; 115 uint8_t actor_state; 116 uint16_t partner_prio; 117 uint8_t partner_mac[ETHER_ADDR_LEN]; 118 uint16_t partner_key; 119 uint16_t partner_portprio; 120 uint16_t partner_portno; 121 uint8_t partner_state; 122 }; 123 124 /* lagg port settings */ 125 struct lagg_reqport { 126 char rp_ifname[IFNAMSIZ]; /* name of the lagg */ 127 char rp_portname[IFNAMSIZ]; /* name of the port */ 128 u_int32_t rp_prio; /* port priority */ 129 u_int32_t rp_flags; /* port flags */ 130 union { 131 struct lacp_opreq rpsc_lacp; 132 } rp_psc; 133 #define rp_lacpreq rp_psc.rpsc_lacp 134 }; 135 136 #define SIOCGLAGGPORT _IOWR('i', 140, struct lagg_reqport) 137 #define SIOCSLAGGPORT _IOW('i', 141, struct lagg_reqport) 138 #define SIOCSLAGGDELPORT _IOW('i', 142, struct lagg_reqport) 139 140 /* lagg, ports and options */ 141 struct lagg_reqall { 142 char ra_ifname[IFNAMSIZ]; /* name of the lagg */ 143 u_int ra_proto; /* lagg protocol */ 144 145 size_t ra_size; /* size of buffer */ 146 struct lagg_reqport *ra_port; /* allocated buffer */ 147 int ra_ports; /* total port count */ 148 union { 149 struct lacp_opreq rpsc_lacp; 150 } ra_psc; 151 #define ra_lacpreq ra_psc.rpsc_lacp 152 }; 153 154 #define SIOCGLAGG _IOWR('i', 143, struct lagg_reqall) 155 #define SIOCSLAGG _IOW('i', 144, struct lagg_reqall) 156 157 struct lagg_reqflags { 158 char rf_ifname[IFNAMSIZ]; /* name of the lagg */ 159 uint32_t rf_flags; /* lagg protocol */ 160 }; 161 162 #define SIOCGLAGGFLAGS _IOWR('i', 145, struct lagg_reqflags) 163 #define SIOCSLAGGHASH _IOW('i', 146, struct lagg_reqflags) 164 165 struct lagg_reqopts { 166 char ro_ifname[IFNAMSIZ]; /* name of the lagg */ 167 168 int ro_opts; /* Option bitmap */ 169 #define LAGG_OPT_NONE 0x00 170 #define LAGG_OPT_USE_FLOWID 0x01 /* enable use of flowid */ 171 /* Pseudo flags which are used in ro_opts but not stored into sc_opts. */ 172 #define LAGG_OPT_FLOWIDSHIFT 0x02 /* set flowid shift */ 173 #define LAGG_OPT_USE_NUMA 0x04 /* enable use of numa */ 174 #define LAGG_OPT_FLOWIDSHIFT_MASK 0x1f /* flowid is uint32_t */ 175 #define LAGG_OPT_LACP_STRICT 0x10 /* LACP strict mode */ 176 #define LAGG_OPT_LACP_TXTEST 0x20 /* LACP debug: txtest */ 177 #define LAGG_OPT_LACP_RXTEST 0x40 /* LACP debug: rxtest */ 178 #define LAGG_OPT_LACP_FAST_TIMO 0x80 /* LACP fast timeout */ 179 #define LAGG_OPT_RR_LIMIT 0x100 /* RR stride */ 180 u_int ro_count; /* number of ports */ 181 u_int ro_active; /* active port count */ 182 u_int ro_flapping; /* number of flapping */ 183 int ro_flowid_shift; /* shift the flowid */ 184 uint32_t ro_bkt; /* stride for RR */ 185 }; 186 187 #define SIOCGLAGGOPTS _IOWR('i', 152, struct lagg_reqopts) 188 #define SIOCSLAGGOPTS _IOW('i', 153, struct lagg_reqopts) 189 190 #define LAGG_OPT_BITS "\020\001USE_FLOWID\003USE_NUMA" \ 191 "\005LACP_STRICT\006LACP_TXTEST" \ 192 "\007LACP_RXTEST\010LACP_FAST_TIMO" 193 194 #ifdef _KERNEL 195 196 /* 197 * Internal kernel part 198 */ 199 200 #define LAGG_PORTACTIVE(_tp) ( \ 201 ((_tp)->lp_ifp->if_link_state == LINK_STATE_UP) && \ 202 ((_tp)->lp_ifp->if_flags & IFF_UP) \ 203 ) 204 205 struct lagg_ifreq { 206 union { 207 struct ifreq ifreq; 208 struct { 209 char ifr_name[IFNAMSIZ]; 210 struct sockaddr_storage ifr_ss; 211 } ifreq_storage; 212 } ifreq; 213 }; 214 215 #define sc_ifflags sc_ifp->if_flags /* flags */ 216 #define sc_ifname sc_ifp->if_xname /* name */ 217 218 /* Private data used by the loadbalancing protocol */ 219 struct lagg_lb { 220 u_int32_t lb_key; 221 struct lagg_port *lb_ports[LAGG_MAX_PORTS]; 222 }; 223 224 struct lagg_mc { 225 struct sockaddr_dl mc_addr; 226 struct ifmultiaddr *mc_ifma; 227 SLIST_ENTRY(lagg_mc) mc_entries; 228 }; 229 230 struct lagg_counters { 231 uint64_t val[IFCOUNTERS]; 232 }; 233 234 struct lagg_softc { 235 struct ifnet *sc_ifp; /* virtual interface */ 236 struct mtx sc_mtx; /* watchdog mutex */ 237 struct sx sc_sx; 238 int sc_proto; /* lagg protocol */ 239 u_int sc_count; /* number of ports */ 240 u_int sc_active; /* active port count */ 241 u_int sc_flapping; /* number of flapping 242 * events */ 243 struct lagg_port *sc_primary; /* primary port */ 244 struct ifmedia sc_media; /* media config */ 245 void *sc_psc; /* protocol data */ 246 uint32_t sc_seq; /* sequence counter */ 247 uint32_t sc_stride; /* stride for RR */ 248 uint32_t sc_flags; 249 int sc_destroying; /* destroying lagg */ 250 251 CK_SLIST_HEAD(__tplhd, lagg_port) sc_ports; /* list of interfaces */ 252 SLIST_ENTRY(lagg_softc) sc_entries; 253 254 eventhandler_tag vlan_attach; 255 eventhandler_tag vlan_detach; 256 struct callout sc_callout; 257 u_int sc_opts; 258 int flowid_shift; /* shift the flowid */ 259 struct lagg_counters detached_counters; /* detached ports sum */ 260 struct callout sc_watchdog; /* watchdog timer */ 261 #define LAGG_ADDR_LEN \ 262 MAX(INFINIBAND_ADDR_LEN, ETHER_ADDR_LEN) 263 uint8_t sc_bcast_addr[LAGG_ADDR_LEN]; 264 }; 265 266 struct lagg_port { 267 struct ifnet *lp_ifp; /* physical interface */ 268 struct lagg_softc *lp_softc; /* parent lagg */ 269 uint8_t lp_lladdr[LAGG_ADDR_LEN]; 270 271 u_char lp_iftype; /* interface type */ 272 uint32_t lp_prio; /* port priority */ 273 uint32_t lp_flags; /* port flags */ 274 int lp_ifflags; /* saved ifp flags */ 275 int lp_ifcapenable; /* saved ifp capenable */ 276 void *lh_cookie; /* if state hook */ 277 void *lp_psc; /* protocol data */ 278 int lp_detaching; /* ifnet is detaching */ 279 SLIST_HEAD(__mclhd, lagg_mc) lp_mc_head; /* multicast addresses */ 280 281 /* Redirected callbacks */ 282 int (*lp_ioctl)(struct ifnet *, u_long, caddr_t); 283 int (*lp_output)(struct ifnet *, struct mbuf *, 284 const struct sockaddr *, struct route *); 285 struct lagg_counters port_counters; /* ifp counters copy */ 286 287 CK_SLIST_ENTRY(lagg_port) lp_entries; 288 struct epoch_context lp_epoch_ctx; 289 }; 290 291 extern struct mbuf *(*lagg_input_ethernet_p)(struct ifnet *, struct mbuf *); 292 extern struct mbuf *(*lagg_input_infiniband_p)(struct ifnet *, struct mbuf *); 293 extern void (*lagg_linkstate_p)(struct ifnet *, int ); 294 295 int lagg_enqueue(struct ifnet *, struct mbuf *); 296 297 SYSCTL_DECL(_net_link_lagg); 298 299 #endif /* _KERNEL */ 300 301 #endif /* _NET_LAGG_H */ 302